7561209601 has 8 divisors (see below), whose sum is σ = 8253936000. Its totient is φ = 6869373840.

The previous prime is 7561209583. The next prime is 7561209611. The reversal of 7561209601 is 1069021657.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7561209601 - 2¹¹ = 7561207553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7561209611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204841 + ... + 238918.

It is an arithmetic number, because the mean of its divisors is an integer number (1031742000).

Almost surely, 2^7561209601 is an apocalyptic number.

It is an amenable number.

7561209601 is a deficient number, since it is larger than the sum of its proper divisors (692726399).

7561209601 is a wasteful number, since it uses less digits than its factorization.

7561209601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445319.

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 7561209601 is about 86955.2160655127. The cubic root of 7561209601 is about 1962.7444547395.

The spelling of 7561209601 in words is "seven billion, five hundred sixty-one million, two hundred nine thousand, six hundred one".